Protection device for lifting seed crystal disc

Abstract

The utility model provides a protection device for lifting of a seed crystal disc, and aims to solve the technical problem that the seed crystal disc falls off due to abnormal breakage of a lifting rope in the lifting process of an existing silicon core. The protection device for lifting the seed crystal disc comprises a rope assembly and a seed crystal disc assembly. The rope assembly comprises a main rope, an auxiliary rope and a rope buckle. One end of the main rope and one end of the auxiliary rope penetrate through and are movably buckled to the rope buckle and are connected with the lifting head. The seed disc assembly comprises a locking piece and a seed disc. One end of the locking piece is connected with the main rope and the auxiliary rope, and the other end is mounted on the seed crystal disc. And the auxiliary rope is obliquely arranged between the rope fastener and the seed crystal disc. Through cooperation of the main rope and the auxiliary rope, the seed crystal disc is driven to lift a silicon core upwards. Even if the main rope is broken due to abnormity, the seed crystal disc and the auxiliary rope are stressed to be prevented from falling into the furnace, so that the normal operation of the silicon core drawing process is maintained.

Description

Technical Field

[0001] The present application relates to a silicon core furnace supporting equipment, and in particular to a seed crystal plate lifting protection device. Background Art

[0002] When the existing silicon core furnace is pulling the silicon core, the pulling head often drives the tungsten wire rope to pull the seed crystal held by the seed crystal plate. The seed crystal plate is first pulled down by the tungsten wire rope to pass through the drawing hole of the high-frequency coil and inserted into the melt at the upper end of the raw material rod, and then pulled up by the tungsten wire rope, so that the seed crystal drives the melt to rise and recrystallize, and finally forms a silicon core of the required length.

[0003] Since the melting temperature in the furnace is high during the above process, the tungsten wire rope (steel wire rope) is prone to abnormal tripping or rope breakage during long-term operation, causing the seed crystal disk to fall and making it impossible to continue normal drawing of the silicon core. Utility Model Content

[0004] The utility model aims to provide a protection device for lifting a seed crystal plate to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A protective device for pulling a seed crystal plate, comprising:

[0007] The rope assembly comprises a main rope, a secondary rope and a rope buckle; one end of the main rope and one end of the secondary rope are both passed through and movably buckled to the rope buckle, and are connected to the lifting head;

[0008] The seed crystal disk assembly comprises a locking member and a seed crystal disk; one end of the locking member is connected to the main rope and the auxiliary rope, and the other end is installed on the seed crystal disk; the auxiliary rope is obliquely arranged between the rope buckle and the seed crystal disk.

[0009] Furthermore, the main rope is arranged at the center position of the rope buckle.

[0010] Furthermore, there are multiple auxiliary ropes; the multiple auxiliary ropes are arranged along the circumference of the rope buckle and surround the main rope therein; the length of the auxiliary rope is greater than the length of the main rope.

[0011] Furthermore, each of the secondary ropes is of equal length.

[0012] Further, the locking member includes a first locking member and a second locking member;

[0013] The first locking member is aligned with the main rope and installed on the top of the seed crystal plate; the main rope is connected to the top of the first locking member;

[0014] The second locking member surrounds the first locking member therein; the bottom of the second locking member is installed on the top of the seed crystal plate, and the top is connected to the auxiliary rope.

[0015] Furthermore, the second locking members are evenly spaced along the circumference of the seed crystal disk.

[0016] Furthermore, the seed crystal plate comprises a clamping seat, a seed crystal plate body and a frame;

[0017] The clamping seat has a locking piece installed on the top;

[0018] The seed crystal plate body is installed at the bottom of the clamping seat; a plurality of clamps are also provided at the bottom of the seed crystal plate body;

[0019] One end of the frame passes through the seed crystal plate body and the clamping seat in sequence through a mounting column and is threadedly connected with the seed crystal plate body and the clamping seat; the other end of the frame matches the clamping head and is arranged below the clamping seat.

[0020] Furthermore, the chuck is externally connected to a motor.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] (1) The seed crystal plate pulling protection device of the present application drives the seed crystal plate to pull the silicon core upward through the cooperation of the main rope and the auxiliary rope. Even if the main rope breaks due to abnormality, the seed crystal plate is still supported by the auxiliary rope to prevent it from falling into the furnace, thereby maintaining the normal progress of the silicon core pulling process.

[0023] (2) The seed crystal plate pulling protection device of the present application is provided with a frame, and during the process of pulling the silicon core, the mounting column is rotated counterclockwise to lower the frame to below the chuck, so that the frame is sleeved on the outside of the silicon core, thereby avoiding collision between multiple silicon cores during the pulling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a protection device for pulling a seed crystal plate according to an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of a seed crystal plate assembly of a seed crystal plate lifting protection device according to an embodiment of the present application.

[0027] Reference numerals:

[0028] 1. Main rope; 2. Rope buckle; 3. Secondary rope;

[0029] 4. Locking member; 40. First locking member; 41. Second locking member;

[0030] 5. Seed crystal plate; 50. Clamping seat; 51. Seed crystal plate body; 52. Clamp; 53. Mounting column; 54. Frame. DETAILED DESCRIPTION

[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0032] In the description of the present invention, it should be understood that the terms "length", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numerals in different examples, and this repetition is for the purpose of simplicity and clarity, and does not indicate the relationship between the various embodiments discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0036] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] The utility model embodiment provides a seed crystal plate lifting protection device, please refer to Figure 1 The protection device for lifting the seed crystal plate includes a rope assembly and a seed crystal plate assembly, wherein:

[0039] The rope assembly comprises a main rope 1, a secondary rope 3 and a rope buckle 2. One end of the main rope 1 and one end of the secondary rope 3 are both penetrated and movably buckled with the rope buckle 2, and are connected to the pulling head.

[0040] The seed crystal plate assembly comprises a locking member 4 and a seed crystal plate 5. One end of the locking member 4 is connected to a main rope 1 and a secondary rope 3, and the other end is installed on the seed crystal plate 5. The secondary rope 3 is obliquely arranged between the rope buckle 2 and the seed crystal plate 5.

[0041] When the pulling head pulls the main rope 1 and the auxiliary rope 3 up or down, when the main rope 1 breaks due to an abnormality, the auxiliary rope 3 is still under force to prevent the seed crystal plate 5 from falling, so as to maintain the normal progress of the silicon core drawing process.

[0042] Specifically,

[0043] The rope assembly includes a main rope 1, an auxiliary rope 3 and a rope buckle 2. The main rope 1 and the auxiliary rope 3 are both tungsten wire ropes. One end of the main rope 1 and one end of the auxiliary rope 3 are both penetrated and movably buckled to the rope buckle 2, wherein the main rope 1 is arranged at the center of the rope buckle 2. There are multiple auxiliary ropes 3 with equal lengths. Multiple auxiliary ropes 3 are arranged along the circumference of the rope buckle 2, and the main rope 1 is surrounded therein. The length of each auxiliary rope 3 is greater than that of the main rope 1. One end of the main rope 1 and one end of the auxiliary rope 3 after penetrating the rope buckle 2 are connected to a lifting head. The lifting head drives the main rope 1 and the auxiliary rope 3 to rise or fall.

[0044] The seed crystal plate assembly comprises a locking member 4 and a seed crystal plate 5. The rope assembly is installed on the top of the seed crystal plate 5 through the locking member 4.

[0045] The locking members 4 are matched with the main rope 1 and the auxiliary rope 3. That is, the number of the locking members 4 is equal to the sum of the number of the main rope 1 and the auxiliary rope 3. The top of the locking member 4 is connected to the other end of the main rope 1 and the other end of the auxiliary rope 3. The locking member 4 includes a first locking member 40 and a second locking member 41.

[0046] The seed crystal plate 5 has a first locking member 40 and a second locking member 41 installed on its top, and at this time, the main rope 1 and the auxiliary rope 3 are both in a tensioned state. The first locking member 40 is aligned with the main rope 1 and installed on the top of the seed crystal plate 5; the second locking member 41 surrounds the first locking member 40 and is installed on the top of the seed crystal plate 5. The seed crystal is clamped at the bottom of the seed crystal plate 5.

[0047] When the lifting head pulls the main rope 1 and the auxiliary rope 3 up or down, and the main rope 1 in the middle of the seed crystal plate 5 breaks due to an abnormality, the seed crystal plate 5 can still be stressed by the auxiliary rope 3, and the lifting head drives the auxiliary rope 3 to realize the rising or falling of the seed crystal plate 5, thereby preventing the seed crystal plate 5 from falling under the above-mentioned abnormal situation and affecting the drawing of the silicon core.

[0048] Example 2

[0049] Based on Example 1, see Figure 1-Figure 2 As shown. The seed crystal disk 5 includes a clamping seat 50, a seed crystal disk body 51 and a frame 54. The clamping seat 50 has a first locking member 40 and a second locking member 41 installed on its top. The seed crystal disk body 51 is installed at the bottom of the clamping seat 50. A plurality of chucks 52 are provided at the bottom of the seed crystal disk body 51. The chuck 52 can clamp the seed crystal. The frame 54 has a mounting column 53 at one end that passes through the seed crystal disk body 51 and the clamping seat 50 in sequence, and is threadedly connected to the seed crystal disk body 51 and the clamping seat 50. When the mounting column 53 is rotated clockwise, the frame 54 rises relative to the seed crystal disk body 51; when the mounting column 53 is rotated counterclockwise, the frame 54 descends relative to the seed crystal disk body 51. The other end of the frame 54 matches the chuck 52 and is arranged below the seed crystal plate body 51, that is, the frame 54 is provided with through holes of the same number as the chuck 52 and aligned with the chuck 52, and the diameter of the through hole is equal to the outer diameter of the chuck 52. The mounting post 53 is rotated clockwise, and the frame 54 rises until the chuck 52 is located in the through hole. During the process of pulling the silicon core, the mounting post 53 is rotated counterclockwise, and the frame 54 is lowered below the chuck 52, so that the frame 54 is sleeved on the outside of the silicon core pulled by the chuck 52, thereby preventing the silicon cores from colliding with each other during the pulling process.

[0050] Example 3

[0051] Based on the embodiment 2, a motor is externally connected to the chuck 52. The motor drives the chuck to rotate so that the silicon core can be rotated during the silicon core drawing process.

Claims

1. A seed crystal plate lifting protection device, characterized in that: The protective device for pulling the seed crystal plate comprises: The rope assembly comprises a main rope, a secondary rope and a rope buckle; one end of the main rope and one end of the secondary rope are both passed through and movably buckled to the rope buckle, and are connected to the lifting head; The seed crystal disk assembly comprises a locking member and a seed crystal disk; one end of the locking member is connected to the main rope and the auxiliary rope, and the other end is installed on the seed crystal disk; the auxiliary rope is obliquely arranged between the rope buckle and the seed crystal disk.

2. The seed crystal plate lifting protection device according to claim 1, characterized in that: The main rope is arranged at the center position of the rope buckle.

3. The protection device for seed crystal plate lifting according to claim 2, characterized in that: There are multiple auxiliary ropes; the multiple auxiliary ropes are arranged along the circumference of the rope buckle and surround the main rope therein; the length of the auxiliary rope is greater than the length of the main rope.

4. The seed crystal plate lifting protection device according to claim 3, characterized in that: Each of the secondary ropes is of equal length.

5. The seed crystal plate lifting protection device according to claim 2, characterized in that: The locking member includes a first locking member and a second locking member; The first locking member is aligned with the main rope and installed on the top of the seed crystal plate; the main rope is connected to the top of the first locking member; The second locking member surrounds the first locking member therein; the bottom of the second locking member is installed on the top of the seed crystal plate, and the top is connected to the auxiliary rope.

6. The seed crystal plate lifting protection device according to claim 5, characterized in that: The second locking members are evenly spaced along the circumference of the seed crystal disk.

7. The seed crystal plate lifting protection device according to claim 5, characterized in that: The seed crystal plate comprises a clamping seat, a seed crystal plate body and a frame; The clamping seat has a locking piece installed on the top; The seed crystal plate body is installed at the bottom of the clamping seat; a plurality of clamps are also provided at the bottom of the seed crystal plate body; One end of the frame is penetrated by a mounting column through the seed crystal plate body and the clamping seat in sequence, and is threadedly connected with the seed crystal plate body and the clamping seat; the other end of the frame matches the clamping head and is arranged below the clamping seat.

8. The seed crystal plate lifting protection device according to claim 7, characterized in that: The clamp is externally connected with a motor.

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